Guam is one of the few Pacific locations to currently conduct its own testing.
The local Governor's Press Secretary, Krystal Paco-San Agustin, announced the results of the latest batch of samples.
"We have an additional two positive confirmed cases of Covid-19. Guam Public Health Lab tested 20 samples, two returned positve, 18 came back negative.
"That brings our total Covid count to 58 cases of Covid-19 here in island. That includes one death and seven recoveries."
Ms Paco-San Agustin also confirmed that from midnight tonight all incoming travellers would have to spend 14 days in a government quarantine facility.